Finding the Fourth Proportional to 19,978,742.73, 27,570,689.38 and 10,811,385.48

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,742.73 : 27,570,689.38 = 10,811,385.48 : x
2. Step 2: Convert to fraction form
   19,978,742.73/27,570,689.38 = 10,811,385.48/x
3. Step 3: Cross multiply
   19,978,742.73x = 27,570,689.38 × 10,811,385.48
4. Step 4: Simplify right side
   19,978,742.73x = 298,077,350,836,522.19
5. Step 5: Solve for x
   x = 298,077,350,836,522.19/19,978,742.73
6. Step 6: Final answer
   x = 14,919,725.17